github-ci: pin macos build to 10.15

There is currently a build failure with macos-latest (recently updated)
to 11 in the libhtp test suite code. Not sure if there are other
build issues in libhtp or Suricata at this time.

(cherry picked from commit 8b9721b2652790354e619c77622cf84c766915a3)

diff --git a/.github/workflows/builds.yml b/.github/workflows/builds.yml
index 601ecaaffb668568ce4878417d8d0adbfbc54c30..bc016298af3681764e3a7682a0cd97446c00e1b3 100644 (file)
--- a/.github/workflows/builds.yml
+++ b/.github/workflows/builds.yml
@@ -963,7 +963,8 @@ jobs:
 
   macos-latest:
     name: MacOS Latest
-    runs-on: macos-latest
+    # use 10.15 for now. Build fails on macos-11 (aka macos-latest)
+    runs-on: macos-10.15
     needs: prep
     steps:
       # Cache Rust stuff.